Client randomly disconnects on server travel

I don’t know if this happened earlier, but after I added Steam authentication logic to PostLogin and Logout events it has become a huge problem.

Here is a portion of the client log:

[2020.06.26-15.04.06:426][192]LogBlueprintUserMessages: [BaseCharacterPC_C_0] stats stored!
[2020.06.26-15.04.12:083][471]LogSlate: Updating window title bar state: overlay mode, drag disabled, window buttons hidden, title bar hidden
[2020.06.26-15.04.39:085][565]LogSlate: Updating window title bar state: overlay mode, drag disabled, window buttons hidden, title bar hidden
[2020.06.26-15.04.39:199][592]LogNet: Browse: ip//Game/FPS/Levels/Site?game=/Game/FPS/Blueprints/Game/Deathmatch/FPS_RobotDM.FPS_RobotDM_C?Name=Player
[2020.06.26-15.04.39:200][592]LogNet: World NetDriver shutdown IpNetDriver_0 [GameNetDriver]
[2020.06.26-15.04.39:200][592]LogNet: DestroyNamedNetDriver IpNetDriver_0 [GameNetDriver]
[2020.06.26-15.04.39:203][592]LogNet: UNetConnection::Close: [UNetConnection] RemoteAddr: ip, Name: IpConnection_0, Driver: GameNetDriver IpNetDriver_0, IsServer: NO, PC: BaseCharacterPC_C_0, Owner: BaseCharacterPC_C_0, UniqueId: STEAM:(name) [0x14BC1635F60], Channels: 15, Time: 2020.06.26-15.04.39
[2020.06.26-15.04.39:203][592]LogNet: UChannel::Close: Sending CloseBunch. ChIndex == 0. Name: [UChannel] ChIndex: 0, Closing: 0 [UNetConnection] RemoteAddr: ip, Name: IpConnection_0, Driver: GameNetDriver IpNetDriver_0, IsServer: NO, PC: BaseCharacterPC_C_0, Owner: BaseCharacterPC_C_0, UniqueId: STEAM:(name) [0x14BC1635F60]
[2020.06.26-15.04.39:203][592]LogExit: GameNetDriver IpNetDriver_0 shut down
[2020.06.26-15.04.39:204][592]LogInit: WinSock: Socket queue. Rx: 32768 (config 32768) Tx: 32768 (config 32768)
[2020.06.26-15.04.39:204][592]PacketHandlerLog: Loaded PacketHandler component: Engine.EngineHandlerComponentFactory (StatelessConnectHandlerComponent)
[2020.06.26-15.04.39:204][592]LogNet: Game client on port 7777, rate 10000
[2020.06.26-15.04.39:205][592]LogWorld: Warning: SetActiveLevelCollection attempted to use an out of date NetDriver: GameNetDriver
the client spammed the last line for a while, then this popped up in between the repeated message: 
[2020.06.26-15.04.44:270][776]LogHandshake: SendChallengeResponse. Timestamp: 1.112672, Cookie: 008146069082013150222036018151196146079148138167169122058008
[2020.06.26-15.04.44:313][786]LogNet: UPendingNetGame::SendInitialJoin: Sending hello. [UNetConnection] RemoteAddr: ip, Name: IpConnection_1, Driver: PendingNetDriver IpNetDriver_1, IsServer: NO, PC: NULL, Owner: NULL, UniqueId: INVALID

and here is the server log:

I have seamless travel enabled in my game mode, and I use Execute Console Command to load a new map with a specified game mode, and the issue is completely random.

Is there any way to fix this?

1 Like

facing same problem, any progress ?